EP2032459A1 - Rondelle d'étanchéité à substance absorbant l'oxygène - Google Patents

Rondelle d'étanchéité à substance absorbant l'oxygène

Info

Publication number
EP2032459A1
EP2032459A1 EP07730271A EP07730271A EP2032459A1 EP 2032459 A1 EP2032459 A1 EP 2032459A1 EP 07730271 A EP07730271 A EP 07730271A EP 07730271 A EP07730271 A EP 07730271A EP 2032459 A1 EP2032459 A1 EP 2032459A1
Authority
EP
European Patent Office
Prior art keywords
layer
oxygen
container
sealing disc
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07730271A
Other languages
German (de)
English (en)
Inventor
Peter Rothweiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfelder Kunststoffwerke Herm Meyer GmbH
Original Assignee
Alfelder Kunststoffwerke Herm Meyer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfelder Kunststoffwerke Herm Meyer GmbH filed Critical Alfelder Kunststoffwerke Herm Meyer GmbH
Publication of EP2032459A1 publication Critical patent/EP2032459A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/244—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes provided with oxygen absorbers

Definitions

  • the invention relates to a sealing disc for container openings of containers with an oxygen-absorbing substance.
  • Sealing discs are known in many forms. They serve to seal container mouths. In the containers are, for example, foods in solid, liquid or powdery consistency, on the one hand it is undesirable that these container contents get out of the container, and on the other hand it is also undesirable that foreign substances or even the ambient air enters the container and comes into contact with the contents in the container interior. On the one hand, the lid is therefore closed with screw caps, cam latches, plug-in closures or the like upwards, on the other hand, the container mouth is sealed even with a tight-fitting and the container mouth sealing gasket. While the outer cap serves primarily for the mechanical closure and also the reclosure of a container once opened, but is usually not completely tight, the sealing disc is formed so that it forms a hermetically sealed closure. In general, the sealing disc is placed together with the cap on the container mouth, after the content is filled in the container. The consumer then opens the cap, which depending on the embodiment, the sealing disc is either opened with or must be deducted by the consumer or additionally pierced.
  • EP 0 803 445 B1 proposes to the applicant a sealing disk, in particular for bottle caps for containers, which are filled or filled with a filling substance which contains oxygen-reactive substances, for example drinks such as wines.
  • this sealing disc prevents, for example, the gaseous constituent of the alcohol contained in the alcoholic beverage or wine from passing through the sealing disc to the outside and, on the other hand, reduces the entry of oxygen and the formation of oxygen in the interior of the bottle.
  • a substance is provided as a layer on the side of the sealing disc facing the container contents, which absorbs oxygen and thus extracts this oxygen from the head space above the filling material.
  • EP 1 007 427 B1 also describes a multilayer sealing disk with oxygen-absorbing or absorbing properties, wherein a multilayered arrangement of different gas-permeable or gas-impermeable layers of polymer material together with foam layers are respectively provided one above the other.
  • a sealing disc which has an aluminum layer and a layer of polyethylene foam, which are connected to one another by means of an adhesive layer.
  • An oxygen absorbing layer between two layers of polyethylene is also contemplated.
  • sealing discs can be used only in certain types of closure, and in particular in such, in which the sealing washers are inserted in a screw or cam twist lock. During the transport and subsequent storage time, they can indeed serve their intended purpose and are then removed when opening the container as a rule.
  • this proven form of attaching loosely placed discs in sealing washers or container closures is not desired in all cases or meets the requirements.
  • the object of the invention is therefore to propose a sealing disc which has oxygen absorbing properties, but can also be fixed on the neck of the container.
  • a sealing disk for container openings of containers with an electrically conductive layer suitable for coupling heat by induction, with a layer which can be melted by heat conduction from the electrically conductive layer and be sealed onto the container opening, wherein the layer which can be sealed on when the sealing disk is placed on is adjacent to the container opening the container interior of the container, and with an absorber layer which can withdraw and / or absorb oxygen from an in-container contents, the absorber layer is when placing the sealing disc on the container opening with the container interior in conjunction.
  • This is particularly useful for fillers and useful whose properties are negatively affected in contact with oxygen, for example, by oxidation such as unpreserved fruit and vegetable juices or in beer.
  • Heat induced for example, by generating eddy currents.
  • a specific part of the gasket into which this heat can be induced transfers these by heat conduction to its neighboring layers and leads to a partial melting of these layers as well as the adjacent mouth edge of the container. This results in a very intensive connection between the partially melted bottom of the sealing disc in the region of the container edge with just the top of this container edge.
  • the inductive sealant is used as a means of tamper-evident protection and as a reliable barrier to protect against external influences, such as oxygen and water vapor barrier.
  • oxygen-absorbing sealing liners of the prior art have generally been considered to be non-inductively sealable, since their properties preclude this.
  • the oxygen absorbing substance should also face the interior of the container as well as the induction sealing layers, which at first glance is mutually exclusive.
  • the EP 1 462 381 B1 therefore already tried a solution going in another direction.
  • the inventive Sealing disc is not only inductive sealable, but also has an oxygen-absorbing function.
  • the sealing disk is formed such that the layer sealable to the container mouth has sections which absorb oxygen and / or that the layer has oxygen-depriving and / or absorbing properties.
  • the sealable layer and the absorber layer are basically one and the same layer.
  • the sealing disc starting from the container opening on each other, the sealable layer on the above for coupling heat by induction suitable electrically conductive layer and above the oxygen-absorbing absorber layer of a located inside the container oxygen absorbing absorber layer sealable layer and the electrically conductive layer perforations are guided, leading to the absorber layer.
  • Sealing disks are, albeit in an unfamiliar, novel composition.
  • the electrically conductive, the heat from the induction in the sealing slice-in layer is coated on one side with a sealable layer. Thereafter, these two layers are perforated, provided with either one or more perforation holes. Thereafter, an absorber layer is applied to the other side of the metallic layer. If one then places this sealing disk with the sealable layer down on a container mouth, it is of course possible to perform the dissolution process as conventionally correct. Due to the perforations, however, oxygen present in the head space of the container interior can now pass through the two lower layers of the sealing disk and can penetrate into the area of the absorber layer. Thus, the absorber layer can fulfill their function.
  • the electrically conductive layer will preferably be a metallic layer.
  • a metallic layer in particular an aluminum layer will be used, since a particularly effective coupling can take place on the one hand, on the other hand aluminum is relatively light and thus the weight of the overall package is not substantially increased and, finally, relatively inexpensive.
  • This concept is also particularly interesting in that even the composite of aluminum layer with the sealable layer remains unchanged from the conventional, proven such composite layers, apart of course from the perforations made for this purpose.
  • the absorber layer is covered here upwards by an oxygen barrier layer. Since the absorber layer is now the topmost layer, it would be able to communicate with the ambient air, which would quickly eliminate its ability to absorb oxygen, which in many cases is undesirable.
  • the sealing disk is arranged above the container opening to be sealed onto the container opening, then the oxygen absorbing and / or withdrawing absorber layer and above the suitable for coupling heat by induction metallic layer above the other and the on the Container opening sealable layer for the fluid in the container interior and / or is permeable to oxygen.
  • the sealing layer can also be changed so that it is impermeable to foreign bodies or, for example, even for water, but allows oxygen through.
  • the permeability to oxygen then causes it to penetrate through the sealable layer even into the next layer, which is the absorber layer in this embodiment.
  • the absorber layer so fulfill their function.
  • the sealable layer has an increasing content of oxygen-absorbing matter or of increasing contents of corresponding components from its side facing the contents of the container up to the side facing away from the container and adjacent to the electrically conductive layer ,
  • this sealable layer of two layers, each having a certain proportion of the oxygen-absorbing matter.
  • the proportion of oxygen-absorbing matter or portions with oxygen-absorbing properties for example, adjacent to the container opening in a proportion between 0% and 3%, in particular about 1%. This proportion can then increase continuously in one or more stages to 5% to 20%, preferably about a range of 10%.
  • the resulting gaskets form films that are sealable or peelable (peelable) as desired and practical requirements.
  • sodium sulfite can be used as the material for the oxygen-absorbing and / or oxygen-depleting layers and regions. Sodium sulfite is activated at 90% or higher humidity and then begins to absorb the oxygen, thus depriving it of the environment.
  • An alternative to sodium sulfite is also an iron-containing material, such as iron powder.
  • Iron powder oxidizes itself and removes oxygen from its environment, which is then missing there.
  • the iron powder itself becomes brownish in this oxidation. Therefore, such an absorber material is used mainly in optically non-demanding contexts.
  • absorber materials can be used, which are not activated by a certain humidity, but for example by the use of ultraviolet light. Also completely different oxygen-absorbing or oxygen-depriving substances are conceivable.
  • One embodiment has sodium sulfite in a proportion of about 10% in the sealing layer, which increase in the interior of the sealing insert into a proportion of up to 33%.
  • FIG. 1 shows a section through a first embodiment according to the invention of a sealing disc on a container
  • FIG. 2 a section through a second embodiment according to the invention of a sealing disk on a container
  • FIG 3 shows a section through a third embodiment according to the invention of a sealing disc on a container.
  • a container 10 has an interior 1 1, in which filling material is located or can be introduced into the filling material.
  • Container 10 has a cylindrical container mouth; this may also have a square, polygonal, oval or other cross-section in certain forms.
  • the container mouth 12 is shown schematically in all figures.
  • the container mouth 12 is in each case flat at the top, so that a sealing disk designated overall by 20 can be laid flat.
  • the sealing disc 20 is constructed differently in each of the various embodiments in FIGS. 1 to 3, but the individual components are similar or produce similar effects and effects and are therefore provided with matching reference numerals.
  • the sealing disc 20 has distributed over different areas of the sealing disc 20 a plurality of functionalities.
  • a layer 22 having oxygen-absorbing properties is provided, which is also referred to as absorber layer 22.
  • a metallic layer 23 is provided, as a rule an aluminum layer 23, into which by means of magnetic induction an outer layer 23 is provided Energy can be coupled to the electromagnetic field, which is converted into heat in this aluminum layer 23.
  • a multilayer structure of the sealing disk 20 is considered such that the lowermost layer adjacent to the container mouth 12 is a layer 21 which simultaneously has oxygen-absorbing properties.
  • the sealing layer 21 must be specially mixed in order to additionally obtain the oxygen-absorbing properties, which are indicated by the addition of small circular sections with the reference numeral 22.
  • an aluminum layer 23 is provided as a further layer.
  • This aluminum layer 23 serves as a heat conductor.
  • this aluminum layer 23 can be introduced by induction from the outside heat, which is then passed through heat conduction to the sealing layer 21 and their partial melting at least in the region of the peripheral edge adjacent to the container mouth 12 causes, whereby there is a sealing sealing.
  • sealing layer 21 and the aluminum layer 23 may also be provided an additional barrier layer, not shown, which serves to protect the aluminum against corrosion by possibly aggressive contents in the container interior 1 1.
  • the aluminum layer 23 may also not shown further layers of polyethylene and / or polypropylene foam provided which serve as a heat buffer and to compensate for muzzle tolerances.
  • a PET layer can then be provided as protection against bottoming of the closure cap.
  • a sealing layer 21 is likewise located facing the container 10 or the container interior 11 and the container mouth 12 as the lowermost layer of the sealing disk 20.
  • the sealing layer 21 does not have to have any oxygen-absorbing properties.
  • sealing layer 21 there is also an aluminum layer 23, which serves for the inductive supply of heat, which serves the sealing layer 21 for its partial melting.
  • the sealing layer 21 as well as the aluminum layer 23 are provided with one or in particular several or even a plurality of perforations 30, which pass through both layers. These perforations 30 are provided so that they do not affect the sealing properties in the region of the peripheral edge of the container mouth 12. This can be ensured by the fact that the perforations 30 do not extend into the edge region of the sealing disk 20.
  • a continuous absorber layer 22 Above the aluminum layer 23 is a continuous absorber layer 22.
  • This absorber layer 22 is in the mounted state of the sealing disc 20 on the container mouth 12 via the perforations 30 with the container interior 1 1 and the filling products located there in combination.
  • an oxygen barrier layer 24 is provided in this embodiment. This oxygen barrier layer 24 shields the absorber layer 22 from the oxygen located outside the sealing disk 20 or outside the container 10. It should also be considered that the absorber layer 22 should also be protected against oxygen entering from the side. Since the representations are not to scale, it should be noted, however, that this area occupies a much smaller area than the upwardly directed termination area of the absorber layer 22.
  • oxygen barrier layer 24 further layers can then be provided as in the embodiments of FIG.
  • an absorber layer 22 which is connected here over the entire surface.
  • the absorber layer 22 there is again an aluminum layer 23, which serves for the inductive supply of heat.
  • the aluminum layer 23 releases the absorbed heat by heat conduction through the absorber layer 22 to the sealing layer 21, at least in the region of the circumference of the container mouth 12, and in turn allows the sealing layer 21 to be sealed onto the container mouth 12.
  • All three embodiments can be used both for so-called one-piece sealing disks, which have no sealing element left in the closure, and for so-called two-part sealing disks, which have a sealing element remaining in the closure.
  • resealing elements for which a carton or a carton with PET or polyethylene foam with lamination or a polypropylene foam with lamination is used which has a separable bonding layer of wax or polyolefin with the in the 1, 2 or 3.
  • This re-sealing element is thus connected via a connecting layer to the uppermost of the illustrated layers, but is separated therefrom on initial opening of the closure cap and remains in the closure cap then removes the remaining on the container mouth 12 and shown in Figures 1 to 3 components of the sealing disc 20 and can then close the container 10 as desired with the cap and the upper cap remaining in the cap upper components of the sealing disc 20. At least for a temporary period i St thus the durability of the contents in the container interior 1 1 of the container 10 possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne une rondelle d'étanchéité destinée à des ouvertures (12) de contenants (10) et comprenant une couche métallique (23) apte à l'injection de chaleur par induction, ainsi qu'une couche (21) que la couche métallique (23) peut faire fondre par conduction de chaleur et qui peut être scellée sur l'ouverture (12) du contenant. La couche scellable (21) est voisine de l'intérieur (11) du contenant (10) lors de l'application de la rondelle d'étanchéité (20) sur l'ouverture (12) du contenant. Une couche absorbante (22) qui peut extraire et/ou absorber l'oxygène d'un fluide est conçue de manière à être en contact avec l'intérieur (11) du contenant lors de l'application de la rondelle d'étanchéité (20) sur l'ouverture (12) du contenant.
EP07730271A 2006-06-28 2007-06-20 Rondelle d'étanchéité à substance absorbant l'oxygène Withdrawn EP2032459A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006030074A DE102006030074B3 (de) 2006-06-28 2006-06-28 Dichtscheibe mit einer sauerstoffabsorbierenden Substanz
PCT/EP2007/056141 WO2008000672A1 (fr) 2006-06-28 2007-06-20 Rondelle d'étanchéité à substance absorbant l'oxygène

Publications (1)

Publication Number Publication Date
EP2032459A1 true EP2032459A1 (fr) 2009-03-11

Family

ID=38220003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730271A Withdrawn EP2032459A1 (fr) 2006-06-28 2007-06-20 Rondelle d'étanchéité à substance absorbant l'oxygène

Country Status (9)

Country Link
US (1) US20100059942A1 (fr)
EP (1) EP2032459A1 (fr)
JP (1) JP2009541169A (fr)
KR (1) KR20090035495A (fr)
CN (1) CN101479164B (fr)
CA (1) CA2656256A1 (fr)
DE (1) DE102006030074B3 (fr)
MX (1) MX2009000244A (fr)
WO (1) WO2008000672A1 (fr)

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US8057896B2 (en) * 2005-01-06 2011-11-15 Selig Sealing Products, Inc. Pull-tab sealing member with improved heat distribution for a container
US8715825B2 (en) 2005-01-06 2014-05-06 Selig Sealing Products, Inc. Two-piece pull-tab sealing member with improved heat distribution for a container
CA2603631C (fr) * 2005-04-15 2012-06-05 Illinois Tool Works Inc. Stratifie rembourre a fermeture
ES2326754T3 (es) 2006-03-20 2009-10-19 Selig Sealing Products, Inc. Laminado de cierre para recipientes.
PL1935636T5 (pl) 2006-12-20 2016-05-31 Selig Sealing Products Inc Laminat
US8703265B2 (en) 2007-03-23 2014-04-22 Selig Sealing Products, Inc. Container seal with removal tab and piercable holographic security seal
US8522990B2 (en) 2007-03-23 2013-09-03 Selig Sealing Products, Inc. Container seal with removal tab and holographic security ring seal
US9624008B2 (en) 2007-03-23 2017-04-18 Selig Sealing Products, Inc. Container seal with removal tab and security ring seal
US20080233339A1 (en) * 2007-03-23 2008-09-25 Thorstensen-Woll Robert William Laminated container seal with removal tab bound by adhesive
PL2014461T3 (pl) * 2007-06-22 2010-03-31 Selig Sealing Products Inc Uszczelnienie pojemnika
EP2183106B1 (fr) 2007-08-24 2016-10-12 Selig Sealing Products, Inc. Couverture multifonction pour recouvrir de manière hygiénique un dessus de contenant
WO2012135353A1 (fr) 2011-03-28 2012-10-04 Selig Sealing Products, Inc. Structure de stratifié permettant de stabiliser une couche aux dimensions instables
ES2757684T3 (es) 2011-06-24 2020-04-29 Selig Sealing Products Inc Elemento de sellado con una porción extraíble para exponer y formar una función de dispensación
EP2822871A4 (fr) 2012-03-08 2015-12-09 Selig Sealing Products Inc Elément de scellage de réceptacle avec composant de sécurité protégé et languette d'ouverture
US9028963B2 (en) 2012-09-05 2015-05-12 Selig Sealing Products, Inc. Tamper evident tabbed sealing member having a foamed polymer layer
US9193513B2 (en) 2012-09-05 2015-11-24 Selig Sealing Products, Inc. Tabbed inner seal
CA2846021C (fr) 2013-03-15 2021-06-08 Selig Sealing Products, Inc. Joint d'etancheite interne a couche formant une languette partielle chevauchante
CA2846161C (fr) 2013-03-15 2020-10-20 Selig Sealing Products, Inc. Joint d'etancheite interne a sous-couche formant une languette
EP3102499B1 (fr) 2014-02-05 2019-11-20 Selig Sealing Products, Inc. Élément formant un sceau d'inviolabilité à languette comprenant deux couches d'aluminium
US10556732B2 (en) 2015-03-03 2020-02-11 Selig Sealing Products, Inc. Tabbed seal concepts
WO2018081419A1 (fr) 2016-10-28 2018-05-03 Selig Sealing Products, Inc. Élément unique formant sceau d'inviolabilité à languette en aluminium
CN109863021B (zh) 2016-10-28 2021-12-03 赛利格密封产品公司 用于与含脂肪的组合物一起使用的密封构件
US11866242B2 (en) 2016-10-31 2024-01-09 Selig Sealing Products, Inc. Tabbed inner seal
US11708198B2 (en) 2018-07-09 2023-07-25 Selig Sealing Products, Inc. Grip enhancements for tabbed seal
US11254481B2 (en) 2018-09-11 2022-02-22 Selig Sealing Products, Inc. Enhancements for tabbed seal

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Also Published As

Publication number Publication date
JP2009541169A (ja) 2009-11-26
US20100059942A1 (en) 2010-03-11
DE102006030074B3 (de) 2007-07-26
MX2009000244A (es) 2009-03-23
KR20090035495A (ko) 2009-04-09
CA2656256A1 (fr) 2008-01-03
CN101479164B (zh) 2011-06-15
CN101479164A (zh) 2009-07-08
WO2008000672A1 (fr) 2008-01-03

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